Harrow



UNITED STATES PATENT OFFICE.

JOSEPH B. NEFF, OF BURLINGTON, IOWA, ASSIGNOR OF ONE-HALE TO JAMES H.AND THOMAS E. BARLEY, OF SEDA'LIA, MISSOURI.

HARROW- SPECIFICATION forming part of Letters Patent No. 361,229, datedApril 12, 1887.

Application filed June 16, 1884.

To all whom it may concern:

' both the top and bottom flanges the size of the tooth, or larger, andthe tooth secured in position by a wedge, or by providing long-slotmortises in both the top and bottom flanges larger than the teeth, witha clamp secured to the body or web of the beam to clamp and hold thetooth in its position. Such have been found objectionable, first, in themortises being as large or larger than the tooth,weakening the beam soas to require a heavy iron, and second, in the teeth being clamped rigidin their position, requiring to have the clamp loosened when desired 'tomove the teeth from vertical to an incline, or vice versa, as a changeof draft from end to end would not move the Y teeth when properly heldsufficiently tight to hold them from falling out of the harrow. Allthese objections my invention obviates and overcomes; and, further, itis desirable in such combined harrows that the teeth shall be looselyheld in their position, and they-may be so loosely held as to wabbleabout with good results in more thoroughly stirring the ground. Theobject of my invention is to provide a harrow having channel-iron-beamswith teeth loosely held in their position and adapted to be eithervertical or inclined; and it consists in the peculiar construction,arrangement, and

adaptation of parts, as hereinafter set forth,

and referred to in the drawings.

Figure l is an end or sectional View of the harrow-beam with a toothattached. 7 Fig. 2 is a side elevation view showing the open side of thebeam with a tooth in position, also showing the construction of thetooth, and Fig. 3 is a perspective View of the said beam, showing themortises in both the top and bottom flanges, with a tooth in position.

Serial No. 134,929. (No model.)

The harrow may be composed of any desired number of beams having anydesired number of teeth in a frame, as ordinarily. A B 0 represent thebarrow-beam, in which A is the top flange, B is the bottom flange, and Othe body or web connecting the said top and bottom flanges in a solidbar. In the bottom flange, B, is a series of long-slotted mor' tises, H,larger in size than the tooth, to allow said tooth to move freely andloosely from a vertical to an incline. Preferably said mortise H is madediagonal with the beam, so that the tooth will move with the line ofdraft, while the beam is set oblique to it. In the top flange, A, is aseries of slotted mortises, G, smaller in size than the size of the bodyof the tooth, as shown, of sufficient size only to receive the reducedend of the top end of the tooth, as will be understood by the drawings.

D represents the tooth provided with a reduced-size top end or tenon, E,to loosely enter the small mortise in the said top flange, theshoulderI, seated under the said flange to stop the tooth from moving up aboveits position, and the pin or key P, seated above the flange to hold thetooth from falling out of its position. Instead of the key P, anyequivalent device may be used without departing from my invention.

In operation it will be observed that the mortise in the top flange issmaller than heretofore,-consequently the beam is stronger, and alighter beam may be used than heretofore; that the tooth is looselypivoted in the said small mortise in the top flange and loosely swingsthrough the larger mortise in the bottom flange, so that by a reversalofthe draft the teeth will adapt and move to the new position, and,avoiding the heretofore practice of loosening clamps, moving the teeth,and again tightening the said clamps, and that by reason of thus looselyattaching said teeth it may be so loosely attached as to wabble and worka zigzag line, if desired, to more thoroughly stir the ground. It willbe observed that the beam rests upon the said shoulders, and that saidkey holds the tooth from falling away from the beam.

Having thus set forth my invention,I claim 1. In a harrow, the beamconsisting of channel -iron having a top flange and a bottom Ice flangeconnected by a web, the said top flange provided with a mortise smallerthan the body of the tooth, the bottom flange provided with a mortiselarger than said tooth, substantially 5 as and for the purpose setforth.

2. In a harrow, the beam consisting of the web having the top flangeprovided with the smaller mortise and the bottom flange provided withthe larger mortise, the combina- [0 tion of the tooth provided with thereduced top end and shoulder, substantially as and for the purpose setforth.

3. The combination of the beam consisting of the flange A, provided witha small mortise, G, the flange B, provided with a larger 15 mortise, H,and the web 0, with the tooth D,

provided with the shoulder, the reduced top end, E, and the pin or keyP, all constructed,

arranged,and adapted to operate substantially as and for the purpose setforth.

JOSEPH B. NEFF.

In presence oi'- E. J. RIZER, E. F. TUTTLE.

